Relievable hanger for clothing and the like

ABSTRACT

A relievable hanger having an article supporting arm pivotally attached to a journal pin mounted in a pair of holes in a pair of bracket flanges, and rigidly fixed to the edge of one hole and slidably disposed within the other hole, the bracket further having a base plate which is attachable to a vertical support structure. One or more inwardly projecting shoulders on the inside face of the flange serves to support combined weight of the arm and clothing and the like. A substantially heavier weight hung on the arm, such as the weight of an adult, will force the arm between the shoulders causing the bracket flanges to flex outwardly thereby allowing the arm to pass completely beyond the shoulders to relieve the arm of the substantial weight as the arm comes to rest into substantial parallelism with the lower portion of the base plate.

United States Patent 1 1 Morris et a1.

RELKEVABLE HANGER FOR CLOTHING AND THE LIKE Inventors: Earl L. Morris;Theodore J. Sally, both of Whittier, Calif.

Acorn Engineering Company, Industry, Calif.

Filed: Nov. 20, 1972 Appl. No.: 308,236

Assignee:

US. Cl 248/294, 403/94, 74/584 Int. Cl. Fl6n 13/00 Field of Search248/291, 293, 294, 475 A,

References Cited UNITED STATES PATENTS Primary Examiner-William H.Schultz Attorney, Agent, or FirmBen E. Lofstedt A relievable hangerhaving an article supporting arm pivotally attached to a journal pinmounted in a pair of holes in a pair of bracket flanges, and rigidlyfixed to the edge of one hole and slidably disposed within the otherhole, the bracket further having a base plate which is attachable to avertical support structure. One or more inwardly projecting shoulders onthe inside face of the flange serves to support combined weight of thearm and clothing and the like. A substantially heavier weight hung onthe arm, such as the weight of an adult, will force the arm between theshoulders causing the bracket flanges to flex outwardly thereby allowingthe arm to pass completely beyond the shoulders to relieve the arm ofthe substantial weight as the arm comes to rest into substantialparallelism with the lower portion of the base plate.

ABSTRACT 3 Claims, 4 Drawing 1F igures RELIEVABLE HANGER FOR CLOTHINGAND THE LIKE SUMMARY OF THE INVENTION 1. Field of the Invention Thisinvention relates to improvements in selfrelieving hangers forarticlesof clothing and the like.

2. Description of the Prior Art Hangers which are mountable to verticalsupports such as walls for supporting the weight of articles of clothingand the like may be broadly classified as either fixed or relievable.While the fixed hangers find wide use and application in many commercialand residential installations, such are not as suitable for use ininstitutional facilities where the danger of suicide may-be quite high.Persons so confined in penal and mental institutions and the like areprone to become so depressed as to attempt to terminate their lives bycommitting suicide. It frequently occurs that persons so confinedattempt to commit suicide by hanging themselves by the use of anytensile object near at hand, as for example, a tom-up bed sheet or othersimilar object. The person then must seek out a suitable supportstructure to which such tension element may be attached, such as aclothes hook. Such a fixed clothes hook is frequently found to beeasilycapable of supporting hundreds of pounds of weight, such as the bodyweight of the person confined to the institution, and, therefore, posesa potential hazard for would-be suicide victims.

It is consequently highly desirable to incorporate in the design of sucha clothes hook for institutional use a means for permitting the hook toyield or release under the force of excess load, and, once released,allow the clothing articles and the like to fall clear of the hook orarm and bracket as well so that none of them will remain hanging on thearm or bracket.

Such a device has been previously described in US. Pat. No. 2,901,207.However, it should be noted that in such designs where the holding forceis governed by the compression of fibrous frictional material that theholding force may be varied independently of said journal pinadjustment. The functional characteristics may be varied by theprolonged compression of such material which tends to produce apermanent compression of such material covering the value of the presetholding force. Additionally, the introduction of fluids, such as water,saliva, urine, and other similar fluids will generally initially reducethe frictional holding force. Thereafter, however, such fluids canproduce a swelling and expansion of the frictional material therebyincreasing the holding force. This effect will, of course, be evengreater should the material be heated with a match or the like.

Further, some fibrous frictional materials are com- I bustible and couldbe partially or fully destroyed by the vertical support in order toaccomplish this modification.

And still further, the use of a teat to limit the upswing of the arm inorder to maintain the arm in a position which is substantiallyperpendicular to the vertical support requires that the installation bemade only one way. For if the unit should be installed upside down, theteat would then limit the down swing of the arm, thereby creating anon-relievable arm which could be used to commit suicide exactly what itwas designed to prevent.

SUMMARY OF THE INVENTION AND OBJECTS The present invention relates toimprovements in relievable hangers for articles of clothing and thelike. The hangers contemplated by this invention are those which aregenerally supported on the wall, and are of such design so as to carryor sustain a predetermined load, such as articles of clothing and thelike, but which will yield or relieve in the event that a load in excessof this predetermined amount is placed on the hangers. In the event thatsuch a hanger yields, the support hook or arm will turn downward towardsa vertical position, thereby assuming a position in which the objectproducing the excessive loading is forced to slide off the arm. Toensure that such an object will slide off the arm, the hook or arm is ofsuch design that once it has relieved and assumed a downward-directedvertical position, it will not present any portion which will supportany object.

It can be appreciated that such relievable hangers embodying theforegoing features are, and may be, usefully applied in many locations.Locations in which such hangers find wide usefulness and meet animportant need are jail or prison cells, as well as other housingfacilities created for the safe confinement of prisoners and otherpersons. As previously discussed, persons so confined in suchinstitutions attempt to commit suicide by hanging themselves. Typically,under such distraught or abnormal mental aberations, such persons willattempt to make use of any tensile object at hand, such asa torn upsheet, towel, or pillowcase. Following the acquisition of such a tensileobject, the person will seek out a suitable object to which the tensileobject may be attached, such as a fixed, non-relievable clothes hook orthe like. Such is frequently found to be suitable for securelysupporting the entire weight of the human body.

It is a primary object of the present invention to provide awallattachable clothes hook which will support the weight of sucharticles as clothing and the like but in the event that the weight of aperson, which generally exceeds pounds, is impressed thereon, such aweight will be sufficient to cause thearm to relieve downwardlysufficiently far to cause the tension element, such as previouslydescribed, to slide off the arm, thus thwarting the attempt to commitsuicide.

Additionally, it is an object of the present invention to form such areleasable arm that the tensile element will not be further restrainedor caught on the arm in its downwardly projecting position; such, ofcourse, would defeat the purpose of the yielding or releasing feature.

In considering the invention in very broad terms, it can be said that myinvention comprises a bracket element for attachment to a wall or othervertical structural element, in conjunction with an arm or the like,

herein also, for the sake of convenience, called a hook, wherein the armis pivotally connected via a journal pin to the bracket element toenable the arm to pivot about a horizontal axis, in order to enable thearm to slant downwardly at an angle sufficient to permit the tensionelement to slide off the arm and thereby defeat the attempt to commitsuicide. In order to retain its functional utility as a clothes carryinghook, the yieldable means is so designed as to support both the hook inan outwardly projecting position and a load which is substantiallysmaller than that produced by the weight of a human, in order that thedevice might perform its normally intended function and yet not permitthe arm to be used to support the weight of an intended suicide victim.

To accomplish this, the load at which the hook should release does notgenerally exceed thirty pounds. Generally, the weight of a person whomight attempt to commit suicide is one hundred pounds or greater.Consequently, it is possible to separate the functional utility of aclothes supporting hook and that of a wallanchoring device capable ofsupporting much larger weights such as the human body, and withreasonable assurance that the force yielding point of the hook wouldoccur before the suicide becomes effective.

The restraining force normally sustaining the unloaded hook orclothing-loaded hook must be produced by a means of such a form andnature that its adjustment cannot be so changed by the confined personthat would produce a hook capable of supporting the weight of a humanfor any appreciable length of time so as to allow said person to commitsuicide.

An important feature of the present invention is to provide a convenientmeans of adjusting the hooks holding force and to limit said adjustmentso that it cannot sustain the weight of a human so confined in aninstitution, and with the assurance that it cannot be tampered with tochange its adjustment. Such interference might be in the form of a wedgeor other foreign object inserted into the unit at a location such aswould increase the holding force of the arm beyond that which isdesirable. The present invention is so designed and constructed that nosuch jamming or interferring with the full releasing movement can beeffected.

A further important feature of the present invention is to provide avandalproof relievable clothes hook. Such is accomplished by permanentlyjoining one end of the journal pin to one of the bracket flanges. Theopposite end is free to move within the hole in the other bracketflange. By eliminating any threaded adjustment means and permanentlyaffixingthe journal pin as hereinbefore described, in addition to thestructural arrangement described herein, the unit is renderedvandalproof.

Another important object of this invention is to provide a relievablehook which may be installed in either of the two vertical positions.Such devices found in the prior art similar to the invention, disclosedin US. Pat. No. 2,901,207, may be installed in only one of the twopossible vertical positions. If installed upside down from its normalposition, the hook will not operate as a relievable hook but insteadoperate as a nonrelievable hook.

An even further object of the present invention is to provide arelievable hanger of such design and construction which may be readilyand inexpensively produced from a sheet metal die cut and formed into aflanged bracket with such few additional low-cost elements that can beeasily produced by conventional shop operations.

Another purpose and object of this invention is to provide a releasablehanger which will comply with the multitudinous safety regulations andrequirements of those authorities having charge of the design andconstruction of penal institutions, juvenile homes, hospitals for theinsane, jails, reformatories, and such facilities as those for retardedand feeble-minded persons.

Other objects and uses of the invention will appear from a detaileddescription of the invention, which consists in the features ofconstruction and combinations of parts hereinafter described andclaimed.

BRIEF DESCRIPTION OF DRAWING In the drawing:

FIG. 1 shows a side elevational view of a typical form of my improvedrelievable hook unit, with the arm extending outwardly at an angle ofgreater than 45 degrees, but not in a substantially horizontal fashionfor the normal or intended use of the unit.

FIG. 2 shows a front elevational view corresponding to FIG. 1.

FIG. 3 shows a plan view corresponding to FIGS. 1 and 2.

FIG. 4 is an isometric exploded assembly view of the relievable hookunit as previously shown in FIGS. 1, 2, and 3.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings,the bracket element 10 is formed conveniently, from sheet metal such asmild steel, or preferably stainless steel, to provide the elongatedvertical plate 11, and having the enlarged end portions 12 and 13 whichare perforated to receive attaching bolts or other vandal-proof elementsfor attachment to the wall. The central portion of face or base plate 11is conveniently formed narrower than such end portions, 12 and 13, asclearly shown in the drawings.

The central portion of the face plate 11 has its side portions formed atsubstantially right angles, or greater, to provide the two companionbracket flanges 14 and 15. These bracket flanges 14, 15 are disposed ina substantially parallel relationship to each other, and are separatedby slightly more than the thickness of the arm or hook element 16 to beset between them. In addition, these flanges 14 and 15 are of generallytriangular form to provide near their apices the openings 17 and 18through which is passed a securing and joumalling pin 19.

The arm or hook element 16 includes a hub portion 20, and an elongatedarm portion 21. This element is generally formed of cylindrical stockand of metal material similar to identical to that used to form thebracket element 10, typically stainless steel.

The locking and journalling pin 19 is seated within the openings l7, l8and extends through both such bracket flanges 14, 15 and the hub portion20 of the arm element 16. Such pin is fixed to the bracket flange 14 bybonding it to the periphery of said opening 18 typically by welding orbrazing and thereafter is polished smooth so as to be flush with theouter surface 22 of the bracket flange 14. The spacing between theopposing faces 23, 24 of the bracet flanges 14, 15 is greater than thethickness of the hub portion 20 so that said hub portion 20 may freelypivot about the journal pin 19 axis and such that it would bepractically impossible for the confined person to insert a wedgetherebetween so as to substantially interfere with the releasable hooksdown rock when said hook 16 is impressed with a load in excess of thatintended to be carried or supported thereby.

The arm or hook element 16 is supported in its normal position forsupporting clothes and the like at an angle of greater than 45 degreesfrom the upper vertical portion of the bracket element 10, namely, theenlarged end portion 12, by means of two, oppositely disposed, inwardlydirected elongated shoulders 25, 26, located on the inside of saidbracket flanges 14, respectively. Said shoulders 25, 26 extendsufficiently inward so that the space between them is slightly smallerthan the diameter of the arm 16. Consequently, as the arm 16 is pivotedabout the journal pin 19, away from the vertical plate ll of the bracketelement 10, the elongated arm portion 21 will come to rest upon theshoulders 25, 26. j

When a force is applied to the outer end of said hook 16 which issufficiently great to force the bracket flanges 14, 15 outward and awayfrom the elongated arm portion 21, the arm 16 will continue its downwardrock until either the force is removed by sliding off the arm 16 oruntil the body of the elongated arm portion 21 passes between theshoulders 25, 26. When the arm 16 clears the shoulder 25, 26, the arm 16will rapidly drop downwardly into substantial parallelism with the baseplate 11.

In order to reset the arm 16 which has been previously relieved, theconfined person merely pushes the arm 16 upwardly forcing it to pivotabout its joumalling pin 19 until the arm 16 once again contacts theshoulders 25, 26 and forces the bracket flanges 14, 15 apart until thearm 16 has passed completely therebetween. Thereafter, the arm 16 isreleased and, once again, comes to rest upon said shoulders 25, 26.

it should be noted,'however, that a single shoulder would perform thesame or similar function as that previously described using two or moreshoulders. Said single shoulder would extend sufficiently inward fromthe inside face of the flange bracket either 15 or 14 so that thedistance between the outer surface of said shoulder and the oppositebracket is smaller than the diameter of the arm 16. Again, as the arm 16is pivoted downwardly about the journal pin 19, away from the verticalpart of the elongated arm portion 21, it will come to rest and besupported by the single shoulder.

The spring-force by which the shoulders 25, 26 are returned to theirformer positions so that the arm 16 may rest thereon and be supportedthereby is the spring-force inherent in the metallic sheet metalmaterial forming said brackets flanges 14, 15 which rise outwardly fromthe base plate 11.

The force at which the arm 16 will relieve is determined gy thespring-force of the bracket flanges l4, 15, as hereinbefore described.To increase said force, a pair of pliers or other similarly suitableadjusting tool is used to grip the outwardly-projecting ends of thebracket flanges 14, 15 and to squeeze them closer together so as to bendthe base of the bracket elements slightly. On the other hand, theholding force is dea 6 creased by spreading said bracket flanges 14, 15apart.

The spring-force of the bracket flanges 14, 15 is determined by both thegauge of the metal used to form the bracket flanges 14, 15 and by thecharacteristics of the particular metal itself. The force applied to thebracket flanges 14, 15 along the sheet metal bend lines 27, 28, fromwhich said bracket flanges 14, 15 project outwardly from the base plate11 :is generally impressed as follows.

When the arm 16 is impressed with an excessive load, such as the weightof a human body, it is pulled downwardly into intimate contact with therounded edge portions 29, 30, of the shoulders 25, 26. The two curvedsurfaces of the arm and the shoulders form two essentially pointcontacts which minimize the frictional area of contact thereby reducingthe frictional forces created therebetween. In addition, the roundedsurfaces do not present such projecting surfaces which would prevent thedown rock of the arm 16 when such arm 16 is impressed with an excessiveload. Consequently, this design is inherently self-relieving and cannotsupport an excessive load such as the weight of an average adult humanbody which is normally pounds or greater. I

It should be noted that said rounded shoulders 25, 2 are typically andconveniently formed by impressing or dimpling the outer surfaces ofthebracket flanges 14, 15 in between the outermost-projecting edge andthe openings 17, 18 and thereby permanently displace the sheet metalmaterial so as to form rounded and inwardly projecting shoulders 25, 26on the opposite or inner faces of said bracket flanges l4, 15.

Further, while it has been found to be generally more suitable for usein the application and use previously described, to form the shoulder orshoulders in between the outermost-projecting edge and the opening 17,18, for ease of adjustment and to establish a lower minimum relievingforce, said shoulder or shoulders may be disposed in any location on theinside face of the brackets as long as said shoulder or shoulderssupport the arm 16 outwardly in its clothes-supporting position of from45 to 90 from the: upper vertical plane of the base plate 11.Consequently, the shoulder or shoulders could be disposed in between theopening 17, 18, and the base plate 11. However, for the arm 16 tocontact the shoulder, the hub portion 20 would be moved closer to thecenter of the elongated arm 21. This is necessary to provide a furtherrearward projection of said arm to permit said arm to contact theshoulder and be supported thereby.

However, as previously mentioned, it would be generally anticipated thatby disposing the shoulders in this position closer to the bend lines 27,28, the spring-force and effect would be greater than if said shoulderswere disposed farther away from said bend lines. Conse quently, theforce at which the arm would relieve would be greater than the relievingforce established when the shoulders are disposed in between theoutermost-projecting edge and the opening l7, 18. This, of course,assumes that all other factors are equal.

As the excessive weight forces the arm downwardly, the elongated armportion 21 of the arm 16 will be forced in between the shoulders 25, 26which will, in turn, cause the ends of the bracket flanges l4, 15 to beforced slightly apart from each other. As the arm portion 21 of the arm16 exits between the two shoulders As clearly illustrated in thedrawings, the relievable hanger may be installed in either of its twopossible vertical positions without impairing its relieving function.

Examination of the drawings will show that the bracket flanges 14, 15,are of such configuration that at no point of down rock of the arm 16would it be possible to insert an interferring object horizontallybeneath the arm 16 and resting against the bracket flanges 14, to stopor prevent the down rock of the arm 16 prior to its achieving such adown slant of the arm 16 as would discharge the tension elementsustained thereby. This important result is achieved by virtue of thesteepness of the lower edges 31, 32 of the bracket flanges l4, 15.Should any interferring object be placed across said edges 31, 32 justbeneath the arm 16, when in a horizontal or down-slanting position, suchwould fail to catch on said bracket edges 31, 32, and would be drivendown as the arm 16 descended, thereby preventing any interference withthe intended operation of the device. in this connection, it is pointedout that such edges 31, 32 are formed at an angle of substantially 45degrees to the vertical plate 11 and connect at their outer ends withthe circular arc portion 33, 34, of the flanges 14, 15.

While this invention has been shown and described in a particulararrangement merely for illustration and explanation, it will be readilyapparent that the invention may be widely varied without departing fromthe scope and spirit of this invention.

We claim:

l. A relievable hanger for supporting articles of clothing or the like,comprising:

an article-supporting arm having a rounded, elongated body and a holetherethrough adjacent one end thereof .disposed substantially transverseto the axis of said body;

a bracket element including a base plate for attachment to a verticalstructural element and including a pair of forwardly-projecting,substantially parallel bracket flanges, the distance between saidbracket flanges being greater than the cross section of said arm so asto place said bracket flanges in contiguous relationship to said arm topermit said arm to move freely therebetween, and the top and bottomedges of said bracket flanges being formed at angles of not less thansubstantially forty-five degrees to said base plate and further having ahole in each bracket flange, the centers of which lie on the samecenterline, said centerline being disposed substantially transverse tosaid base plate;

a journal pin for said arm said pin having a diameter smaller than saidhole in said arm and freely movable therein and further being smaller indiameter than said holes in said bracket flanges, one end of said pinbeing disposed within one of said bracket flange holes and fixedlyjoined to said bracket flange and the other end being disposed withinthe other of said bracket flange holes and having a uniformcross-section from within the hole to the extremity of said pin endwhereby said pin end is freely movable in longitudinal coaxialrelationship to said hole;

a first blunted shoulder on the inside face of one of said bracketflanges upon which said arm may rest; and

a second blunted shoulder oppositely disposed from said first bluntedshoulder on the inside face of the other of said bracket flanges uponwhich said arm may rest, wherein said first and second blunted shouldersare rounded and elongated and are substantially parallel to said baseplate.

2. A relievable hanger as claimed in claim 1 wherein said shoulders arean integral part of the bracket flange material being formed by dimplingor impressing the outside face of the bracket flanges.

3. A relievable hanger for supporting articles of clothing or the like,comprising:

a bracket element including a base plate for attachment to a verticalstructural element, and further including a pair of substantiallysymmetrical, forwardly projecting bracket flanges disposed inspaced-apart, parallel relationship, said flanges having a pair ofoppositely disposed openings therein, the central axis of said openingslying transverse to said base plate and disposed adjacently thereto, thetop and bottom edges of said bracket flanges being formed at an angle ofnot less than substantially 45 to said base plate;

a journal pin disposed within said flange openings and extending betweensaid bracket flanges, one end of said pin being fixedly secured to oneof said flanges and the other end of said pin being freely movable in acoaxial fashion within said hole of the other of said flange openingsalong the centerline of said other opening;

an elongate, cylindrical, article-supporting arm, said arm including ahub portion adjacent one end of said arm, said hub portion adjacentlydisposed in spaced apart relationship to said base plate and freelyjournaled for rotation on said pin disposed between said bracketflanges, the end of said arm adjacent to said hub portion having aradiused portion thereon, the center of said radiused portionsubstantially coinciding with the central axis of said hub portion andsaid journal pin, said radiused portion serving to dispose of said armin contiguous relationship to said base plate and bracket flanges ofsaid bracket element restricting the passage of rope-like articles orthe like therebetween, and a blunt, hemispherically contoured surfaceabout the other end of said arm, said arm further having a diameter lessthan the spaced-apart distance between said pair of bracket flanges;

an elongate, semi-cylindrically shaped shoulder projecting inwardly fromsaid bracket flange in which said pin is fully movable, said shoulderdisposed intermediate said opening in said bracket flange and theforwardmost edge of said bracket flange with its major axis disposed inparallel relationship to said base plate, the distance between theinwardlymost surface of said shoulder and said opposite bracket flangebeing less than the diameter of said article-supporting arm. =6

1. A relievable hanger for supporting articles of clothing or the like,comprising: an article-supporting arm having a rounded, elongated bodyand a hole therethrough adjacent one end thereof disposed substantiallytransverse to the axis of said body; a bracket element including a baseplate for attachment to a vertical structural element and including apair of forwardlyprojecting, substantially parallel bracket flanges, thedistance between said bracket flanges being greater than the crosssection of said arm so as to place said bracket flanges in contiguousrelationship to saId arm to permit said arm to move freely therebetween,and the top and bottom edges of said bracket flanges being formed atangles of not less than substantially forty-five degrees to said baseplate and further having a hole in each bracket flange, the centers ofwhich lie on the same centerline, said centerline being disposedsubstantially transverse to said base plate; a journal pin for said armsaid pin having a diameter smaller than said hole in said arm and freelymovable therein and further being smaller in diameter than said holes insaid bracket flanges, one end of said pin being disposed within one ofsaid bracket flange holes and fixedly joined to said bracket flange andthe other end being disposed within the other of said bracket flangeholes and having a uniform cross-section from within the hole to theextremity of said pin end whereby said pin end is freely movable inlongitudinal coaxial relationship to said hole; a first blunted shoulderon the inside face of one of said bracket flanges upon which said armmay rest; and a second blunted shoulder oppositely disposed from saidfirst blunted shoulder on the inside face of the other of said bracketflanges upon which said arm may rest, wherein said first and secondblunted shoulders are rounded and elongated and are substantiallyparallel to said base plate.
 2. A relievable hanger as claimed in claim1 wherein said shoulders are an integral part of the bracket flangematerial being formed by dimpling or impressing the outside face of thebracket flanges.
 3. A relievable hanger for supporting articles ofclothing or the like, comprising: a bracket element including a baseplate for attachment to a vertical structural element, and furtherincluding a pair of substantially symmetrical, forwardly projectingbracket flanges disposed in spaced-apart, parallel relationship, saidflanges having a pair of oppositely disposed openings therein, thecentral axis of said openings lying transverse to said base plate anddisposed adjacently thereto, the top and bottom edges of said bracketflanges being formed at an angle of not less than substantially 45* tosaid base plate; a journal pin disposed within said flange openings andextending between said bracket flanges, one end of said pin beingfixedly secured to one of said flanges and the other end of said pinbeing freely movable in a coaxial fashion within said hole of the otherof said flange openings along the centerline of said other opening; anelongate, cylindrical, article-supporting arm, said arm including a hubportion adjacent one end of said arm, said hub portion adjacentlydisposed in spaced apart relationship to said base plate and freelyjournaled for rotation on said pin disposed between said bracketflanges, the end of said arm adjacent to said hub portion having aradiused portion thereon, the center of said radiused portionsubstantially coinciding with the central axis of said hub portion andsaid journal pin, said radiused portion serving to dispose of said armin contiguous relationship to said base plate and bracket flanges ofsaid bracket element restricting the passage of rope-like articles orthe like therebetween, and a blunt, hemispherically contoured surfaceabout the other end of said arm, said arm further having a diameter lessthan the spaced-apart distance between said pair of bracket flanges; anelongate, semi-cylindrically shaped shoulder projecting inwardly fromsaid bracket flange in which said pin is fully movable, said shoulderdisposed intermediate said opening in said bracket flange and theforwardmost edge of said bracket flange with its major axis disposed inparallel relationship to said base plate, the distance between theinwardlymost surface of said shoulder and said opposite bracket flangebeing less than the diameter of said article-supporting arm.